package com;

import org.springframework.context.ApplicationContext;   
import org.springframework.web.context.support.WebApplicationContextUtils;   
import org.springframework.beans.BeansException;   
import org.springframework.beans.factory.NoSuchBeanDefinitionException;   
  
import flex.messaging.FactoryInstance;   
import flex.messaging.FlexFactory;   
import flex.messaging.config.ConfigMap;   
import flex.messaging.services.ServiceException;   
  
public class SpringFactory implements FlexFactory   
{   
    private static final String SOURCE = "source";   
  
       
    public void initialize(String id, ConfigMap configMap) {}   
  
      
    public FactoryInstance createFactoryInstance(String id, ConfigMap properties)   
    {   
        SpringFactoryInstance instance = new SpringFactoryInstance(this, id, properties);   
        instance.setSource(properties.getPropertyAsString(SOURCE, instance.getId()));   
        return instance;   
    } // end method createFactoryInstance()   
  
     
    public Object lookup(FactoryInstance inst)   
    {   
        SpringFactoryInstance factoryInstance = (SpringFactoryInstance) inst;   
        return factoryInstance.lookup();   
    }    
  
  
    static class SpringFactoryInstance extends FactoryInstance   
    {   
        SpringFactoryInstance(SpringFactory factory, String id, ConfigMap properties)   
        {   
            super(factory, id, properties);   
        }   
  
  
        public String toString()   
        {   
            return "SpringFactory instance for id=" + getId() + " source=" + getSource() + " scope=" + getScope();   
        }   
  
        public Object lookup()    
        {   
            ApplicationContext appContext = WebApplicationContextUtils.getWebApplicationContext(flex.messaging.FlexContext.getServletConfig().getServletContext());   
            String beanName = getSource();   
  
            try  
            {   
                return appContext.getBean(beanName);   
            }   
            catch (NoSuchBeanDefinitionException nexc)   
            {   
                ServiceException e = new ServiceException();   
                String msg = "Spring service named '" + beanName + "' does not exist.";   
                e.setMessage(msg);   
                e.setRootCause(nexc);   
                e.setDetails(msg);   
                e.setCode("Server.Processing");   
                throw e;   
            }   
            catch (BeansException bexc)   
            {   
                ServiceException e = new ServiceException();   
                String msg = "Unable to create Spring service named '" + beanName + "' ";   
                e.setMessage(msg);   
                e.setRootCause(bexc);   
                e.setDetails(msg);   
                e.setCode("Server.Processing");   
                throw e;   
            }    
        }   
           
    }    
  
}    
